Process of treating cooperage packages.



i therewith.

HENRY VAN EMDEN, OF NEW YORK, N. Y.

PROCESS OF TREATING COOPER-AGE PACKAGES.

N0 Drawing.

To all whom it may concern:

lle it known that I, HENRY Van EMDEN, a citizen of the United States, residing at the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and useful Improvement in Processes of Treating Cooper-age Packages, of which the following is a full, clear, and exact specification.

My invention relates to improvements in processes of treating cooper-age so as to pre* vent the same imparting foreign matter to the liquid contained therein, thereby effecting a change in taste or color of said liquid.

Further said invention has for its object to provide a process of treating wooden packages which will render the packages impervious to the liquid and thereby prevent said liquid from absorbing any of the tannin or coloring matter contained in the wood of which the package is formed.

To the attainment of the aforesaid objects and ends, my invention consists in the successive steps and operations hereinafter more fully described and then pointed out in the claims.

In carrying out mv said process, I first subject the interior of the package or cask, which is usually made of oak wood, to the action of a hot solution of ferrous sulfate consisting of about one pound of ferrous sulfate or cop ieras to one gallon of water. The interior of the package is thoroughly treated. with this solution for about two or three minutes, in order to free the material of the cask from tannin, oil, coloring matter and other adventitious bodies, to about the depth of one-sixteenth of an inch, whereupon the cask is thoroughly rinsed out with hot water. Hereupon the cask is permitted to dry in a warm drying room. When the cask is fully dried, boiling paraflin is applied to the interior of the cask, and the same thoroughly impregnated and coated. The even distribution of the coating may be effected by .means of a pitching machine or by introducing a quantity of hot paraffin into the barrel and then rolling the same in order to spread the paraffin to form a thin coating entirely covering the interior of the cask. After the interior of the package has been properly coated, the surplus paraffin is permitted to drip out.

It will of course be obvious that while the,

Specification of Letters Patent.

Application filed August 5. 1912.

Patented Apr. 18, 1918.

Serial No. 713,342.

operation of parafhning of the package can be carried out only after the package has been made, it is nevertheless possible to subj ect the elements of the package separately, before assembling the same, to the action of the ferrous sulfate solution, and the subsequent rinsing operation, and thereafter, upon assembling and completing the package, subject the same to the paratlining operation.

Packages treated according to the abovedescribed process are suited to the packing of spirits, and alcoholic liquors, and particularly to such alcoholic liquors which are colorless like gin, as the package when treated, as herein set forth, will not yield any of its coloring matter or impart any taste to the liquor.

Having thus described my said invention, what I claim and desire to secure by Letters Patent is:

1. The process of preparing cooperage packages which consists in subjecting the interior thereof to the action of ferrous sulfate in solution; rinsing the package to free the same of said ferrous sulfate; drving said package, and finally impregnating and coating the interior of said package with a body impervious to moisture, substantially as specified.

2. The process of preparing cooperage packages which consists in subjecting the interior thereof to the action of a hot solution of ferrous sulfate to free the same of tannin and coloring matter; rinsing out said package with hot water; drying said rinsed package, and finally impregnating and coating said paclmge with a body iinpervious to moisture, substantially as specified.

3. The process of preparing cooper-age packages which consists in subjecting the interior thereof to the action of a hot solution of ferrous sulfate to free the same of 1 adventitious bodies; rinsing out said package to free the same of said adventitious bodies and ferrous sulfate; drying the cleansed package, and finally impregnating and coating the interior surface thereof with paraffin, substantially as specified.

i. The process of preparing cooperage packages which consists in subjecting the interior thereof for about three minutes to a hot solution composed of ferrous sulfate and water in the proportion of one pound of ferrous sulfate to one gallon of Water; rinscounty of Cook, State of Illinois, this 11th ing out said package with hot Water; drying day of J uly, nineteen hundred and twelve. sald cleansed package in a warm room, and

1' IT T I finally impregnating and coating the in- EEARX VAN EMDEN' terior surface of said package With hot- Witnesses:

parafiin, substantially as specified. W. H. RICH,

Signed at the city of Chicago, in the BERNARD LEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

